1520350770 has 16 divisors (see below), whose sum is σ = 3648841920. Its totient is φ = 405426864.

The previous prime is 1520350729. The next prime is 1520350771. The reversal of 1520350770 is 770530251.

It is a super-2 number, since 2×1520350770² = 4622932927679185800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 50678359 = 1520350770 / (1 + 5 + 2 + 0 + 3 + 5 + 0 + 7 + 7 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1520350771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25339150 + ... + 25339209.

It is an arithmetic number, because the mean of its divisors is an integer number (228052620).

Almost surely, 2^1520350770 is an apocalyptic number.

1520350770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520350770 is an abundant number, since it is smaller than the sum of its proper divisors (2128491150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520350770 is a wasteful number, since it uses less digits than its factorization.

1520350770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50678369.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 1520350770 is about 38991.6756500666. The cubic root of 1520350770 is about 1149.8678537508.

The spelling of 1520350770 in words is "one billion, five hundred twenty million, three hundred fifty thousand, seven hundred seventy".